4 Pillars of Java OOP

Question 1

What are the Four Pillars of Java OOP

Answer 1

1. Encapsulation
2. Inheritance
3. Polymorphism
4. Abstraction

Question 2

This is to make sure that sensitive data is hidden from users.

Answer 2

Encapsulation

Question 3

This can declare a class variable/attributes as _____

Answer 3

Private

Question 4

This provide public ____ and ____ methods to access and update the value of a private

Answer 4

Get and Set Methods

Question 5

This creates new classes based on existing ones.

Answer 5

Inheritance

Question 6

This is the class that inherits from another class

Answer 6

Subclass or Child

Question 7

This is the class being inherited

Answer 7

Superclass or Parent

Question 8

This allows us to perform a single action in different ways.

Answer 8

Polymorphism

Question 9

This is the process of hiding certain details and showing only essential information to the user.

Answer 9

Abstraction

Question 10

This is a restricted class that cannot be used to create objects (to access it, it must be inherited from another class)

Answer 10

Abstract Class

Question 11

This can only be used in an abstract class, and it does not have a body. The body is provided by the subclass.

Answer 11

Abstract Method